I got this jug from a friends office, it had a crack in it. Once these bottles have cracks in them they are worthless as water dispensers and some places will just throw them away. You can probably find some at small offices or even if you ask you local water distributer (culligan, etc.). The clothesline I just had lying around because it's just one of those things that are just handy to keep around.
Step 1: Section the bottle
I used a metal cutting band saw but you can use a hacksaw, snips or a strong pair of scissors.